#include "iostream"
#include "string"
#include "iterator"
#include "vector"
using namespace std;
int main(void){
    int int_arr[]={1,2,3,4,5};
    vector<int> ivec(begin(int_arr), end(int_arr));
    for(auto i:ivec){
        cout<<i<<" ";
    }
    cout<<endl;
    // 1 2 3 4 5
    return 0;
}